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Shanghai Yongyi Fasteners Co., Ltd.
上海永矣紧固件有限公司
Premium Supplier
8 Years
Main Products
Pins
Washers
Combined screws
Nuts
Non-standard fasteners
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material
non-metallic material
grade, rigidity
grade 10.9
Coating
polishing
Model
非标定做材质45#40CrMo
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